... community to drug- related hazards in a timely and coordinated manner Internationally, several surveillance systems are in place and could inform the development of Canadian drug information systems ... current drug information systems and early detection of new drug trends They suggest that effective drug information systems are challenged by many factors such as sociopolitical contexts, lag -time ... N, Mounteney J, Hartnoll R: Drug information systems, early warning, and new drug trends: can drug monitoring systems become more sensitive to emerging trends in drug consumption? Subst Use Misuse...